The usual minister for a parish is a priest or bishop. In rare cases where there is a shortage of priests, a deacon or even lay Eucharistic minister may lead a prayer service and distribute communion that has been previously consecrated at a Mass by a priest.

Food shortage is when there is not enough food. When the amount you have does not equal or exceed the amount that you need, you have a shortage. In this case, the shortage is of food.

The grammar of the sentence "there are no shortage of options" is incorrect. It should be "there is no shortage of options" to ensure subject-verb agreement and correct use of the term "shortage."

Scarcity means shortage.

Deficiency is a shortage in a body.